开源 Java 诊断工具-Arthas 离线包

#!/usr/bin/env bash # WIKI: https://alibaba.github.io/arthas # This script only supports bash, do not support posix sh. # If you have the problem like Syntax error: "(" unexpected (expecting "fi"), # Try to run "bash -version" to check the version. # Try to visit WIKI to find a solution. # program : Arthas # author : Core Engine @ Taobao.com # date : 2019-02-14 # current arthas script version ARTHAS_SCRIPT_VERSION=3.1.0 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" ############ Command Arguments ############ # define arthas's home ARTHAS_HOME= # define arthas's lib ARTHAS_LIB_DIR=${HOME}/.arthas/lib # target process id to attach TARGET_PID= # target process id to attach TARGET_IP="127.0.0.1" # telnet port TELNET_PORT="3658" # http port HTTP_PORT="8563" # telnet session timeout seconds, default 1800 SESSION_TIMEOUT=1800 # use specify version USE_VERSION= # maven repo to download arthas REPO_MIRROR= # use http to download arthas USE_HTTP=false # attach only, do not telnet connect ATTACH_ONLY=false # pass debug arguments to the attach java process DEBUG_ATTACH=false # arthas-client terminal height HEIGHT= # arthas-client terminal width WIDTH= # Verbose, print debug info. VERBOSE=false # command to execute COMMAND= # batch file to execute BATCH_FILE= ############ Command Arguments ############ # if arguments contains -c/--command or -f/--batch-file, BATCH_MODE will be true BATCH_MODE=false # define arthas's temp dir TMP_DIR=/tmp # last update arthas version ARTHAS_VERSION= # maven-metadata.xml url # https://repo1.maven.org/maven2/com/taobao/arthas/arthas-packaging/maven-metadata.xml MAVEN_METADATA_URL="PLACEHOLDER_REPO/com/taobao/arthas/arthas-packaging/maven-metadata.xml" # arthas remote url # https://repo1.maven.org/maven2/com/taobao/arthas/arthas-packaging/3.x.x/arthas-packaging-3.x.x-bin.zip REMOTE_DOWNLOAD_URL="PLACEHOLDER_REPO/com/taobao/arthas/arthas-packaging/PLACEHOLDER_VERSION/arthas-packaging-PLACEHOLDER_VERSION-bin.zip" # update timeout(sec) SO_TIMEOUT=5 # define JVM's OPS JVM_OPTS="" ARTHAS_OPTS="-Djava.awt.headless=true" OS_TYPE= case "$(uname -s)" in Linux*) OS_TYPE=Linux;; Darwin*) OS_TYPE=Mac;; CYGWIN*) OS_TYPE=Cygwin;; MINGW*) OS_TYPE=MinGw;; *) OS_TYPE="UNKNOWN" esac # check curl/grep/awk/telent/unzip command if ! [ -x "$(command -v curl)" ]; then echo 'Error: curl is not installed. Try to use java -jar arthas-boot.jar' >&2 exit 1 fi if ! [ -x "$(command -v grep)" ]; then echo 'Error: grep is not installed. Try to use java -jar arthas-boot.jar' >&2 exit 1 fi if ! [ -x "$(command -v awk)" ]; then echo 'Error: awk is not installed. Try to use java -jar arthas-boot.jar' >&2 exit 1 fi if ! [ -x "$(command -v telnet)" ]; then echo 'Error: telnet is not installed. Try to use java -jar arthas-boot.jar' >&2 exit 1 fi if ! [ -x "$(command -v unzip)" ]; then echo 'Error: unzip is not installed. Try to use java -jar arthas-boot.jar' >&2 exit 1 fi # exit shell with err_code # $1 : err_code # $2 : err_msg exit_on_err() { [[ ! -z "${2}" ]] && echo "${2}" 1>&2 exit ${1} } # get with default value # $1 : target value # $2 : default value default() { [[ ! -z "${1}" ]] && echo "${1}" || echo "${2}" } # check arthas permission check_permission() { [ ! -w "${HOME}" ] \ && exit_on_err 1 "permission denied, ${HOME} is not writable." } # SYNOPSIS # rreadlink <fileOrDirPath> # DESCRIPTION # Resolves <fileOrDirPath> to its ultimate target, if it is a symlink, and # prints its canonical path. If it is not a symlink, its own canonical path # is printed. # A broken symlink causes an error that reports the non-existent target. # LIMITATIONS # - Won't work with filenames with embedded newlines or filenames containing # the string ' -> '. # COMPATIBILITY # This is a fully POSIX-compliant implementation of what GNU readlink's # -e option does. # EXAMPLE # In a shell script, use the following to get that script's true directory of origin: # trueScriptDir=$(dirname -- "$(rreadlink "$0")") rreadlink() ( # Execute the function in a *subshell* to localize variables and the effect of `cd`. target=$1 fname= targetDir= CDPATH= # Try to make the execution environment as predictable as possible: # All commands below are invoked via `command`, so we must make sure that # `command` itself is not redefined as an alias or shell function. # (Note that command is too inconsistent across shells, so we don't use it.) # `command` is a *builtin* in bash, dash, ksh, zsh, and some platforms do not # even have an external utility version of it (e.g, Ubuntu). # `command` bypasses aliases and shell functions and also finds builtins # in bash, dash, and ksh. In zsh, option POSIX_BUILTINS must be turned on for # that to happen. { \unalias command; \unset -f command; } >/dev/null 2>&1 [ -n "$ZSH_VERSION" ] && options[POSIX_BUILTINS]=on # make zsh find *builtins* with `command` too. while :; do # Resolve potential symlinks until the ultimate target is found. [ -L "$target" ] || [ -e "$target" ] || { command printf '%s\n' "ERROR: '$target' does not exist." >&2; return 1; } command cd "$(command dirname -- "$target")" # Change to target dir; necessary for correct resolution of target path. fname=$(command basename -- "$target") # Extract filename. [ "$fname" = '/' ] && fname='' # !! curiously, `basename /` returns '/' if [ -L "$fname" ]; then # Extract [next] target path, which may be defined # *relative* to the symlink's own directory. # Note: We parse `ls -l` output to find the symlink target # which is the only POSIX-compliant, albeit somewhat fragile, way. target=$(command ls -l "$fname") target=${target#* -> } continue # Resolve [next] symlink target. fi break # Ultimate target reached. done targetDir=$(command pwd -P) # Get canonical dir. path # Output the ultimate target's canonical path. # Note that we manually resolve paths ending in /. and /.. to make sure we have a normalized path. if [ "$fname" = '.' ]; then command printf '%s\n' "${targetDir%/}" elif [ "$fname" = '..' ]; then # Caveat: something like /var/.. will resolve to /private (assuming /var@ -> /private/var), i.e. the '..' is applied # AFTER canonicalization. command printf '%s\n' "$(command dirname -- "${targetDir}")" else command printf '%s\n' "${targetDir%/}/$fname" fi ) # reset arthas work environment # reset some options for env reset_for_env() { # init ARTHAS' lib mkdir -p "${ARTHAS_LIB_DIR}" \ || exit_on_err 1 "create ${ARTHAS_LIB_DIR} fail." # if env define the JAVA_HOME, use it first # if is alibaba opts, use alibaba ops's default JAVA_HOME [ -z "${JAVA_HOME}" ] && [ -d /opt/taobao/java ] && JAVA_HOME=/opt/taobao/java if [[ (-z "${JAVA_HOME}") && ( -e "/usr/libexec/java_home") ]]; then # for mac JAVA_HOME=`/usr/libexec/java_home` fi if [ -z "${JAVA_HOME}" ]; then # try to find JAVA_HOME from java command local JAVA_COMMAND_PATH=$( rreadlink $(type -p java) ) JAVA_HOME=$(echo "$JAVA_COMMAND_PATH" | sed -n 's/\/bin\/java$//p') fi # iterater throught candidates to find a proper JAVA_HOME at least contains tools.jar which is required by arthas. if [ ! -d "${JAVA_HOME}" ]; then JAVA_HOME_CANDIDATES=($(ps aux | grep java | grep -v 'grep java' | awk '{print $11}' | sed -n 's/\/bin\/java$//p')) for JAVA_HOME_TEMP in ${JAVA_HOME_CANDIDATES[@]}; do if [ -f "${JAVA_HOME_TEMP}/lib/tools.jar" ]; then JAVA_HOME=`rreadlink "${JAVA_HOME_TEMP}"` break fi done fi if [ -z "${JAVA_HOME}" ]; then exit_on_err 1 "Can not find JAVA_HOME, please set \$JAVA_HOME bash env first." fi # maybe 1.8.0_162 , 11-ea